Exhaust device of turbocharged vehicle

Abstract

An exhaust device of a turbocharger vehicle includes: a catalyst converter diagonally arranged in a vertical direction toward the ground as being connected with an outlet of a streamlined exhaust connecting pipe which is bent at 95° or more, wherein the streamlined exhaust connecting pipe is connected between an outlet of a turbocharger and the catalytic converter.

What is claimed is: 
     
       1. An exhaust device of a turbocharged vehicle, comprising:
 a catalyst converter diagonally arranged in a vertical direction toward the ground as being connected with an outlet of a streamlined exhaust connecting pipe which is bent at 95° or more, 
 wherein the streamlined exhaust connecting pipe is connected between an outlet of the turbocharger and the catalytic converter, 
 wherein the catalytic converter has an oxygen sensor, which has a boss, attached to the catalytic converter, and 
 wherein the boss fastens the oxygen sensor to the catalytic converter and has a diagonally processed surface, which is parallel to an outer surface of the catalytic converter to be parallel with the ground. 
 
     
     
       2. The exhaust device of  claim 1 , wherein the streamlined exhaust connecting pipe comprises:
 an inlet pipe horizontally connected with the outlet of the turbocharger; and 
 a bent pipe bent at 95° or more from the inlet pipe toward the ground in the vertical direction. 
 
     
     
       3. The exhaust device of  claim 1 , wherein the streamlined exhaust connecting pipe comprises:
 an inlet pipe horizontally connected with the outlet of the turbocharger; and 
 a bent pipe bent in a range of 95° to 120° from the inlet pipe toward the ground in the vertical direction. 
 
     
     
       4. The exhaust device of  claim 2 , wherein the streamlined exhaust connecting pipe has cross-sectional area gradually increasing from the inlet pipe to an end portion of the bent pipe. 
     
     
       5. The exhaust device of  claim 1 , wherein the boss for fastening the oxygen sensor has a cylindrical shape having an oxygen sensor fastening hole at a center of the boss,
 wherein the diagonally processed surface of the boss is slanted at the same angle at which the streamlined exhaust connecting pipe bent with respect to the ground, and 
 wherein the boss has a horizontal support surface at an exterior surface with and by which a stopper for limiting an insertion length of the oxygen sensor into the catalytic converter is in contact and is supported. 
 
     
     
       6. The exhaust device of  claim 5 , wherein, due to the diagonal processed surface of the boss, the boss has a shortest length at one side of an outer diameter portion for fastening the oxygen sensor, and a longest length at another side of the outer diameter portion for fastening the oxygen sensor. 
     
     
       7. The exhaust device of  claim 6 , wherein the boss further includes a slanted surface slanted downwardly with respect to the ground along the direction from the exterior surface toward the diagonal processed surface. 
     
     
       8. The exhaust device of  claim 1 ,
 wherein the catalytic converter has a shell having an insertion hole through which the boss is inserted, and 
 wherein a peripheral end portion of the insertion hole is inwardly concaved as much as the thickness of a mat, which is disposed between the outer surface of catalysts of the catalytic converter and the shell, to increase an insertion length of the oxygen sensor inserted into the catalytic converter. 
 
     
     
       9. The exhaust device of  claim 1 , wherein the catalytic converter further includes a stepped groove stepped inward at the peripheral end portion for fastening the oxygen sensor.